Dry-erase markers make broad, bold markings perfect for the office and classroom. Use for brainstorming sessions, better organization and effective communication. For use on erasable markerboard, glass, unpainted metal and glazed ceramics. Four-color set includes black, red, blue and green. Eight-color set includes black, red, blue, green, yellow, orange, purple and brown. Chisel point. Certified AP nontoxic.